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$339+ Cheap flights from Seattle (SEA) to London City (LCY)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LCY
Feb 17 — Feb 241
Tue 2/17
Tue 2/24
1 adult, Economy
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Cheap flight deals from Seattle to London City

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to London City (LCY). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 18, 2026.

Most accurate provider

Expedia
2 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$609
(Cheapflightsfares)

One-way from

$339
(Trip.com)

Popular in

June

Cheapest in

February

Average price

$648
Provider with most accurate pricing for Seattle/Tacoma Intl-London City flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-London City flights.
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From Seattle/Tacoma Intl to London City
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One-way flight from Seattle/Tacoma Intl to London City
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Highest demand for flights based on searches. 15% potential increase in price ($139 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from Seattle to London City

Cheapest flights from Seattle to London City
Explore the most affordable flight options available from Seattle to London City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 18, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/1012:35 pm
SEA
-
LCY
2 stops20h 30m
SWISS
Tue 2/179:15 am
LCY
-
SEA
2 stops22h 15m
SWISS
Deal found 1/16$609
This KAYAK deal was found by Cheapflights users on 1/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/2712:35 pm
SEA
-
LCY
2 stops20h 30m
SWISS
Wed 2/49:20 am
LCY
-
SEA
2 stops19h 52m
SWISS
Deal found 1/17$636
This KAYAK deal was found by Cheapflights users on 1/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/2312:32 pm
SEA
-
LCY
2 stops20h 33m
SWISS
Tue 3/39:15 am
LCY
-
SEA
2 stops21h 28m
SWISS
Deal found 1/17$650
This Virgin Atlantic deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/233:05 pm
SEA
-
LCY
1 stop19h 20m
Virgin Atlantic
Mon 3/25:05 pm
LCY
-
SEA
1 stop26h 30m
Virgin Atlantic
Deal found 1/15$651
This Virgin Atlantic deal was found by Cheapflights users on 1/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/36:10 am
SEA
-
LCY
2 stops18h 40m
Virgin Atlantic
Tue 3/105:50 pm
LCY
-
SEA
1 stop25h 45m
Virgin Atlantic
Deal found 1/17$655
This Virgin Atlantic deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/236:00 am
SEA
-
LCY
2 stops17h 15m
Virgin Atlantic
Tue 3/36:55 pm
LCY
-
SEA
1 stop24h 40m
Virgin Atlantic
Deal found 1/15$656
This Justfly.com deal was found by Cheapflights users on 1/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/110:58 am
SEA
-
LCY
2 stops17h 57m
SWISS
Tue 2/179:15 am
LCY
-
SEA
2 stops21h 28m
SWISS
Deal found 1/17$657
This FlightHub deal was found by Cheapflights users on 1/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/74:35 pm
SEA
-
LCY
1 stop16h 55m
SWISS
Wed 9/169:15 am
LCY
-
SEA
2 stops17h 21m
SWISS
Deal found 1/17$658
This Virgin Atlantic deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/173:05 pm
SEA
-
LCY
1 stop17h 30m
Virgin Atlantic
Tue 2/2410:00 am
LCY
-
SEA
2 stops20h 05m
Virgin Atlantic
Deal found 1/18$661
This SWISS deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/2810:58 am
SEA
-
LCY
2 stops17h 57m
SWISS
Wed 2/49:20 am
LCY
-
SEA
2 stops19h 52m
SWISS
Deal found 1/16$664
This Virgin Atlantic deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/65:30 pm
SEA
-
LCY
1 stop17h 00m
Virgin Atlantic
Mon 4/135:50 pm
LCY
-
SEA
1 stop25h 55m
Virgin Atlantic
Deal found 1/16$665

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to London City that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 18, 2026.
Use the filters below to find and compare flights from Seattle to London City Airport that are best for you.

Fly from

Seattle

Fly to

London City

Route

Depart

Return

Price

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 3/3

3:05 pm-5:20 pm

1 stop18h 15m

London City

Tue 3/10

5:50 pm-12:35 pm

1 stop25h 45m

$651

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 3/3

3:05 pm-8:50 am

1 stop33h 45m

London City

Tue 3/10

8:40 am-12:35 pm

1 stop34h 55m

$651

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 2/17

3:05 pm-5:20 pm

1 stop18h 15m

London City

Tue 2/24

5:50 pm-11:40 am

1 stop25h 50m

$651

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Wed 1/28

10:58 am-12:55 pm

2 stops17h 57m

London City

Tue 2/17

9:15 am-9:01 pm

2 stops19h 46m

$664

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 2/2

12:35 pm-5:05 pm

2 stops20h 30m

London City

Tue 2/17

9:15 am-9:01 pm

2 stops19h 46m

$664

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Wed 1/28

12:35 pm-5:05 pm

2 stops20h 30m

London City

Tue 2/3

9:15 am-9:12 pm

2 stops19h 57m

$664

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 2/9

12:35 pm-5:05 pm

2 stops20h 30m

London City

Mon 2/23

7:10 pm-9:01 pm

2 stops33h 51m

$664

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 3/3

12:32 pm-5:05 pm

2 stops20h 33m

London City

Tue 3/10

7:10 pm-11:28 pm

2 stops35h 18m

$664

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 2/10

12:35 pm-5:05 pm

2 stops20h 30m

London City

Tue 2/17

9:15 am-11:30 pm

2 stops22h 15m

$664

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Wed 4/22

5:30 pm-4:40 pm

1 stop15h 10m

London City

Thu 4/30

9:20 am-4:30 pm

1 stop15h 10m

$665

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/17

Showing 1-10 of 24 results
1
2
3
  • Most accurate provider: When it comes to deals on Seattle-London City Airport flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Seattle-London City Airport flight deals on Cheapflights vs. Expedia 90-95% of the time. Price accuracy is based on data collected from Seattle-London City Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-London City Airport flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-London City Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to London City

Have a flexible travel schedule? Discover the best time to fly to London City from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing London City

Get insights into the airlines that provide service to London City. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London City. Reviews last updated January 18, 2026.
Get a feel of what it's like to fly with Scandinavian Airlines from Seattle to London City Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Scandinavian Airlines
7.3
Good
1,654 reviews

Crew

8.0

Boarding

7.6

Overall

7.3

Comfort

7.2

Food

6.6

Entertainment

6.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

SFO - CPH

Flight was changed causing 5 hour layover in Copenhagen And no accommodations were made to account for this at the lounge or anything like that
Scandinavian Airlines
7.3
Good
1,654 reviews
Scandinavian Airlines
7.3
Good
1,654 reviews

Crew

8.0

Boarding

7.6

Overall

7.3

Comfort

7.2

Food

6.6

Entertainment

6.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

SFO - CPH

Flight was changed causing 5 hour layover in Copenhagen And no accommodations were made to account for this at the lounge or anything like that

Related info for your journey

Find useful and relevant information for your journey from Seattle to London City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to London City?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers will use when flying to London City from Seattle. Booking flights from Seattle/Tacoma Intl (SEA) to London City should be relatively easy as there are 0 daily outbound flights to London City from 1 airline.

  • How long is the flight from Seattle to London City Airport?

    A quick flight from Seattle to London City Airport can take about 17h 57m. Virgin Atlantic provides one of the quickest options available for as low as $664. Seattle and London City Airport are separated by a distance of 4794 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Seattle to London City Airport round-trip?

    According to our current data, Scandinavian Airlines ($962), offers the cheapest pricing from Seattle to London City Airport.

  • Can I find deals for flights from Seattle to London City that include hotel bookings?

    Yes. In addition to deals on Seattle to London City flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to London City?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to London City.

  • Can I find deals for business class flights from Seattle to London City?

    Yes. Cheapflights offers flight deals from Seattle to London City by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near London City Airport?

Book flights to London City Airport if you plan to visit one of these locations
Ilford
Hounslow
Southend-on-Sea
Harrow
Croydon
Eastleigh
Gatwick
Dartford
Dover
Winchester
Orpington
Watford
Hayes
Borehamwood
Aylesbury
Chipping Norton
Horley
Kingston upon Thames
Eastbourne
Sutton

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Seattle to London City

Discover the top airline that operate flights from Seattle to London City. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$962Average$1,000FlexibilityNo cancel feeOn-time77%

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